Triethylamine → HCID 71530104, compound

HRID 1887826Notes

Reaction equation

HRID 1887826 reaction equation
[F:1][C:2]1[CH:10]=[CH:9][C:5]([C:6](O)=[O:7])=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:3]=1.Cl.[CH3:19][NH:20][O:21][CH3:22].C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C>[F:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([N:20]([O:21][CH3:22])[CH3:19])=[O:7])=[C:4]([NH:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:3]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 217338392-Anilino-4-fluorobenzoic acid

Product 1

HCID 71530104HCID 71530104, compoundYield 79%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 4-fluoro-2-phenylamino-benzoic acid (10 g, 43.2 mmol) in DMF (100 mL) was added O-benzotriazole-N,N,N′,N′-tetramethyl-uronium-hexafluorophosphate (HBTU) (32.8 g, 86.5 mmol), N,O-dimethylhydroxylamine hydrochloride (5.3 g, 86.5 mmol), and triethylamine (26.0 g, 36.2 mL, 259 mmol) at room temp. The resulting mixture was stirred for 24 hr at room temperature. The reaction mixture was diluted with ethyl acetate and the organic layer was washed with water and brine. The organic layer was dried over anhydrous Na2SO4 and volatiles were removed under reduced pressure. The crude material was purified using silica gel column chromatography (100% hexanes ramped to 30% ethyl acetate in hexanes). Further purification was accomplished by recrystallization from 10% ethyl acetate in petroleum ether. The product 4-fluoro-N-methoxy-N-methyl-2-phenylamino-benzamide (9.35 g, 79%) was obtained as an off-white solid.

Workup

  1. washthe organic layer was washed with water and brine
  2. dry with materialThe organic layer was dried over anhydrous Na2SO4 and volatiles
  3. customwere removed under reduced pressure
  4. customThe crude material was purified
  5. customFurther purification
  6. customwas accomplished by recrystallization from 10% ethyl acetate in petroleum ether

Sources & evidence

ORD record
ord-cb6e215697d64555a50007b8709fc71f
Source dataset
uspto-grants-2013_08
Patent number
US08501732B2

Reaction notes

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